Yŏksa topʻyo
Subtitle: kuksa, tongyangsa, sŏyangsa taejo
By: Yu Hong-nyŏl kamsu ; Chŏngŭmsa pʻyŏnjippu pʻyŏn
Contributors: Chŏngŭmsa. P'yŏnjippu
Publisher: Chŏngŭmsa
Published: 1959
Place of publication: Sŏul
Language: kor
Number of pages: 38
Subjects: Historical Chronology; Charts, diagrams